2EZ4.3D2/TR12

2EZ4.3D2/TR12 diodes are single Zener diodes from the ON Semiconductor brand, and are mainly used in voltage regulating, clipping and clamping applications.

This diode type is a unique member of the Zener diode family, as it is specifically designed to provide both the high peak power characteristics of a power Zener and the low reverse leakage current of a conventional Zener diode. As a result, they are versatile and can be used effectively as a voltage reference or Zener diode in various signal or voltage regulating tasks.

The primary application field for the 2EZ4.3D2/TR12 is in the area of voltage regulation in a variety of electrical and electronic devices. They can be used in switching power supplies, digital control systems, battery-dependent sensor systems, and even in optical gas and liquid sensing systems. Additionally, they can be used to protect voltage drivers from over-voltage conditions and in solid-state relays.

The Zener diode’s basic construction is similar to that of a regular diode, except for the addition of a heavily doped region in the reverse-biased junction. This so-called “Zener region” creates a weakened electric field, which allows barriers to be easily broken, resulting in a very high forward-biasing current regardless of voltage. This produces the break-down voltage.

In essence, the 2EZ4.3D2/TR12 diode operates by allowing a certain fixed voltage to pass through it, regulating the reverse-bias voltage. This fixed-voltage reference allows designers to easily set the reference voltage based on the device’s voltage breakdown specification. As a result, this particular diode is especially useful for voltage regulation and protection in low-voltage mixed-signal applications.

Moreover, the 2EZ4.3D2/TR12 also has power ratings up to 2 Watts and offers a high level of reliability, making it an ideal choice for many commercial, industrial and military application areas. Its high power ratings also mean it can handle frequent voltage fluctuations, helping devices to remain stable and reliable in the long term.